Design switching on graphs

We show that each (r, lambda)-design yields a class of switching methods that can be used produce cospectral graphs. We use this to explain several specific switching methods such as Godsil-McKay (GM) switching and Wang-Qiu-Hu (WQH) switching.

Publication Details

Journal
ArXiv.org
Published
2025-08-15
Primary Topic
Geochemistry and Geologic Mapping
Type
article
Field-Weighted Citation Impact
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article

Design switching on graphs

ArXiv.org
Geochemistry and Geologic Mapping
article

Design switching on graphs

article en

Abstract

We show that each (r, lambda)-design yields a class of switching methods that can be used produce cospectral graphs. We use this to explain several specific switching methods such as Godsil-McKay (GM) switching and Wang-Qiu-Hu (WQH) switching.

ArXiv.org
Openalex Percentile: Top 72%
Geochemistry and Geologic Mapping
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Design switching on graphs · ArXiv.org (2025) | TGRS Research Map | TGRS